I have a very severe red scarring on my face and this is the only yellow concealer that does anything to it. I have tried other labels as well but this has better amount of pigment and the right shade of yellow (yellow enough). Also about the only thing I can use to help conceal brown marks.
Green and blue shades of concealers appear as themselves on my skin and also make it look a bit more grey, so no help from those shades. My skin is neutral/cool, light.

I have different concealers, but this is the only one that I can acctually use under my eyes. Other concealers make my eyes red and swollen but this one doesn't! It has very light concistency yet it covers all my skin flaws :) My favourite concealer!